Fuel feed fob



S. SEYMOUR.

FUEL FEED :FOR HEATING DEVICES.

APPLICATION FILED OCT. 8. 1921.

Patented July 2-5, 1922 llW/E/VTOR F5 SE/Maae ATTORNEYS Q rate FUEL FEED FOR HEATING DEVICES.

earner.

To all whom it may concern:

Be it known that I, FRnDnRIcK SANFORD SEYMOUR, a citizen of the United States, and a resident of Manchester, in the county of Delaware and State of Iowa, have invented a new and Improved Fuel Feed for Heating Devices, of which the following is a full, clear, and exact description.

,This invention relates to improvements in fuel feeds for heating devices, an object of the invention being .to provide means for gravitationally feeding soft coal impregnated with moisture into the fire pot whereby the combustion of the coal is retarded above the normal level of incandescence, and yet increased heat is produced at the point of incandescence.

In other words, an object of the invention is to provide means for gravitationally feeding soft coal into a firebox in such a manner that a slow burning fire of intense heat will be produced and the consumption of fuel will be comparatively slight.

A further object is to provide a device of this character, which will be simple and practical in construction, strong, durable and efficient in use, and which may be economically manufactured and applied. v With these and other objects in view, the invention consists in certainnovel features of construction and combinations and arrangements of parts'as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawing:

Figure 1 is a sectional view through a stove showing my fuel feed-applied thereto;

Figure 2 is a top plan view'of the stove;

Figure 3 is a fragmentary view in transverse section 011 the line 33 of Figure 1; and

Figure 4 is an enlarged perspective view of the water container.

Referring in detail to the drawing, 1 indicates the fire pot of a stove and 2 the ash space provided with a draft door and damper 3. 4 indicates the grate. 5 indicates the body of the stove extending upwardly from the fire pot and provided at its upper end with an annular bead 6. 7 indicates a cylindrical extension of the stove body, the lower edge portion of such extension fitting around the upper edge of the body 5 and upon the Specification of Letters Patent. Patrgntgd J l 25 132 Application filed October 8, 1921.

Serial No. 506,280.

bead 6. The extension 7 is provided with a laterally extending recessed portion 8 having an orifice 9 around -which extends a flange 10 to which is fitted the stove pipe in the usual manner. 12 indicates the stove top provided with a depending flange 13 fitting into the upper end of the stove body extension 7 The top 12 is provided-with a central orifice 14. 15 indicates a water container which is in the form of a cylindrical receptacle provided with an outwardly extending annular flange 16 at its upper end. The bottom 17 of the receptacle is provided with a central opening 18 from which extends upward the conical flange 19,the upper edge of which is approximatelylevel withthe top of the water receptacle 15. The upper edge of theflange 19 is notched as indicated at 20 for a purpose which will hereinafter appear. The receptacle 15 depends through the opening of the stove top and the flange 16 rests upon the stove top around the edge of the opening 14. 21 is the coal feed chute the major portion of which is in the form of an upwardly tapered tube which is contracted at 22 into a reduced portion 23. The reduced. portion 23 extends upward through the opening 18 of thewater receptacle 15 and centrally through the annular flange 19 passing through the open upper end of such flange. 2a is a split'collar provided with out-turned portions 25 and 26 connected together by a bolt 27. The collar 24 extends around the upper end of the tubular portion 23 and is clamped ti 'ht thereon so as to bear upon the upper edge of the flange 19 and form a support from which the chute 21 depends so as to hang centrally within the stove body 5. The lower end of the chute 21 extends into proximity to the fire pot portion 1. 28 is a steaindome, the major portion of which is cylindrical and. provided with a closedtop 29. tending from the top 29 and provided at its upper end with an opening 31. 32 is a screw cap which is screwed onto the upper end of the tubular extension to form a closure for 30 is an upward tubular portion eX- the orifice 31. 33 is a handle which extends i and around the opening 1st at the outside of ceptacle 15. The water receptacle 15 is also.

partially filled with water. 1t will of course be understood that a small fire is. first-started in the fire pot, access being gained to the fire pot by means of the door and door opening 34 and respectively. The fire is then gradually built-up until chute 21 is charged with coal. As the heat of the fire in the fire pot increases, the water in the container 15 is brought to the boiling point and the steam arising therefrom passes up into the steam dome 2S and passes down through the upper tubular end 23 of the chute 21' and percolates down through the mass of coal'keeping it moist and into the incandescent portion ofthe fuel where it is converted into combustible gases which serve to increase the heating qualities of the fire andthe moisture at the same time helps to carry down the tarry fluid substances passing from the coal as it is coked.

It will thus readily be'seen that the moisture passing down through the mass of coal not only aids to increase the efficiency of the fire but also retards the burning of the fuel supplyproducing a slow burning fire of great heat and at'the same time economizing the consumption of fuel.

lVhen it is desired to draw up the fire quickly I remove the screw cap 32 so as to uncover the orifice 31. The air then passes through such orifice downthrough the mass of coal and upward towards the chimney opening 9 forming a down draft; As soon as the required heat is attained the screw cap 32 is replaced. I have found 'it.preferable to provide the top of the steam dome 28 with a few perforations 36 to make a slight downward draft to help the seam circulate downward through the coal.

From this description it will be seen that l have devised a fuel feed particularly adaptable for feeding soft clean coal into the fire pot of a stove, furnace or boiler and such as is simple in construction and in which the amount of moisture fed to and through the fuel is automatically controlled by the heat of the fire, that is to say, as

the fire increases in heat more steam is generated thereby dampening the coal to a greater degree to retard the fire and as the fire diesdown less heat is generated and consequently less steam passes through the coal permitting the fire to burn up to a greater extent. 1' have provided a flange 3e and notches 20in order to prevent the water contained in the water receptacle 15 from boiling over. and flowing over the top of the stove.

this means as'the waterrises above its normal level" and over'the top of'the water receptacle it passes either through the notches 20 and into the fire or is stopped by the flange Set, the water passing through between. the flange l6 and the top of the stove into the fire,

Although I have illustrated one of the preferred cn'ibodiments of my invention, it will be apparent that various slight changes and alterations might be made in the general form and arrangement of the parts de scribed without departing from the invention, and hence l do not wish to limit myself to the precise details set forth, but shall consider myself atliberty to make such slight changes and alterations as fairly fall within the-spirit and scope of the appended claims.

Iclaim:

1. In a heating device, the combination with the fire pot, of a fuel feed tube depend ing towards the centre of the fire pot and having an open upper end, a steam generator into which the open upper end of the feed tube extends, and means for directing the water overflow into the fire pot.

2. In a heater, the combination with a fire pot, body and cover having an opening, of a water receptacle depending through the opening, a steam dome fitting into the water receptacle, and a fuel feed tube having an open upper end extending through the body of the receptacle into the steam dome.

3. In a heater, the combination with the fire pot, body and'cover having an opening, of. a water receptacle depending through the opening and provided with an annular flange resting upon the cover around the opening, a steam dome extending into the receptacle, and a fuel feed tube having an open upper end extending through the receptacle into the steam dome.

are a heater, the combination with the fire pot, body and cover having an opening, of a water receptacle depending through the opening and provided with an annular flange resting upon. the cover around the opening, a steam dome extending into the receptacle a fuel feedtube having an open upper end extending through the receptacle into the steam dome, and an annular barrier extending from the cover and surrounding the flange of the water receptacle.

5. In, a heater, the combination with the fire pot, body and cover having an opening therein, of a water receptacle depending through the opening having a central orifice in the bottom and an, annular flange extending upward from such bottom around the opening, a fuel feed tube having an open upper end extending through the opening formed by the upper. end of the annular flange, a projecting portion extending from the feed tube adaptedto bear upon the upper end of the flange, and a steam dome eX- tending into the 7 water receptacle.

6. In a heater, the combination with the fire pot, body and cover having an opening therein, of a Water receptacle depending through the opening having a central orifice in the bottom and an annular flange extending upward from such bottom around the opening and having notches in its upper edge, a fuel feed tube having an open upper end extending through the opening formed by the upper end of the annular flange, a projectingportion extending from the feed tube adapted to bear upon the upper end of the flange, and a steam dome extending into the Water receptacle.

7. In a heater, the combination With the fire pot, body and cover, of a Water receptacle depending from the cover, a steam domeextending into the Water receptacle having an air inlet at the top, a closure for such inlet, and a fuel feed tube having an open upper end extending through the Water receptacle into the steam dome.

FREDERICK SANFORD SEYMOUR. 

